FRB 20220509F
One-off burst
- Event ID
- 224599455
- Arrival, 400 MHz
- 2022-05-09 00:24:00.919 UTC
- Right ascension
- 113.057°
- Declination
- 7.836°
How the sub-bursts differ
This burst has 2 sub-bursts. These 7 measurements differ between them and are highlighted below. Everything else is the same for every sub-burst.
| Measurement | Sub-burst 1 | Sub-burst 2 |
|---|---|---|
| Arrival time, 400 MHzMJD | 59708.01667730496 | 59708.01667733203 |
| Arrival time, infinite frequencyMJD | 59708.016584231525 | 59708.0165842586 |
| Width (fitburst)s | 0.000624 | 0.000340 |
| Peak frequencyMHz | 430.7 | 487.4 |
| Highest frequencyMHz | 619.8 | 800.2 |
| Spectral index | 2.56 | 2.99 |
| Spectral running | -17.39 | -7.58 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 113.057± 0.063degrees
dec- 7.836± 0.217degrees
gl- 210.50degrees
gb- 12.61degrees
Detection and dispersion
bonsai_snr- 27.9
snr_fitb- 37.0
bonsai_dm- 310.2pc cm⁻³
dm_fitb- 310.3849± 0.00222pc cm⁻³
dm_exc_ne2001- 205.4pc cm⁻³
dm_exc_ymw16- 171.0pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59708.01667730496± 8.36 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 59708.016584231525± 1.07 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000624± 0.0000543s
scat_time- 0.000000s
Flux and spectrum
flux- 3.14± 1.21Jy
fluence- 6.84± 2.41Jy ms
peak_freqDiffers between sub-bursts.- 430.7MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 619.8MHz
sp_idxDiffers between sub-bursts.- 2.56± 2.61
sp_runDiffers between sub-bursts.- -17.39± 6.77
Exposure and fluence thresholds
exp_up- 93.28± 32.03hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 1.8Jy ms
low_ft_95- —
up_ft_95- 3.3Jy ms
Fit quality
chi_sq- 1633214.017
dof- 1634569
flag_frac- 0.384